Season 4 opens with the team investigating a murder in which the victim appears to have been wearing a CPD-issued wire; Burgess works a case with a new partner; and Crowley questions Lindsay about the night that Intelligence pursued Justin's killer.

Follows District 21 of the Chicago Police Department, which is made up of two distinctly different groups: the uniformed cops and the Intelligence Unit. Hand-picked as the head of the Unit is Voight, who has assembled a team of diverse detectives who share his passion, and commitment to keep the city safe.

Filmmaker Alex Gibney interviews former members of the Church of Scientology, gives us an in-depth look at the inner-workings of the Church of Scientology, reveals abuses and strange practices within the controversial organization.

Chicago P.D. follows the uniformed cops who patrol the beat and go head-to-head with the city’s street crimes and the Intelligence Unit that combats the city’s major offenses, including organized crime, drug trafficking and high-profile murders.[

This series about the men and women of the Chicago Police Department';s District 21 who put it all on the line to serve and protect their community. Chicago Police Department';s newly-minted Intelligence Unit leads investigation into a string of murders possibly related to a Colombian drug gang, Desk Sergeant Trudy Platt has Officer Kim Burgess run an errand for her. Veteran undercover Officer Alvin Olinsky recruits Officer Adam Ruzek from the Police Academy, having worked with his father years before. They head to the address. Detectives Antonio Dawson and Julia Willhite head inside first, unaware of any threat.